Editing Guide to madagascar programs (section)

==sfsizes==
{| class="wikitable" align="center" cellspacing="0" border="1"
! colspan="4" style="background:#ffdead;" | Display the size of RSF files.
|-
! colspan="4" | sfsizes files=y human=n file1.rsf file2.rsf ...
|-
|  colspan="4" | Prints the element size, number of elements, and number of bytes<br>for a list of RSF files.  Non-RSF files are ignored.
|-
| ''bool   '' || '''files=y''' ||  [y/n] || 	If y, print size of each file.  If n, print only total.
|-
| ''bool   '' || '''human=n''' ||  [y/n] || 	If y, print human-readable file size.  If n, print byte count.
|}


This program computes the "theoretical" size in bytes of the data fork of RSF files.  The actual space occupied on disk may be different and machine-dependent due to disk blocking factors, etc.  This theoretical array size should be reproducible.  It is also fast because the program only reads the RSF headers files, not the actual data.

For example, to get the total size of all RSF files in a directory, in human-readable format, without listing each file:
<pre>
sfsizes files=n human=y *.rsf
</pre>
This will also work because sfsizes simply skips any non-RSF file:
<pre>
sfsizes files=n human=y *
</pre>